Wrong.
It says on the Dragon ball wiki:
Scanned by Bulma from Kame House: 177 * Yamchas power level* When he is fighting a Saibamen is goes up to 1480
Raditz power level was 1200, then 1500.
Krillin has 206. Although at one point Krillins reached 75,000 before the fight with Frieza

Yeah, I'm not denying that.
i'm just saying I don't see a source where it says he is 3x stronger than Raditz.
Yamcha also defeated Recoom, who has a power level of about 65,000.
I'm just saying I have never seen it stated that he had a power level of 4,500.

Actually it was 4500 since at the time vegeta was 10 times stronger then raditz and Vegetas power level was about 15,000. thus making raditz 1,500. Also Never said Yamcha would go toe to toe with buu however he is 800 x stronger then the average human.

Seriously? Vegeta at that time was the strongest his race had ever had. (besides brolly) Further more humans are one of the weakest beings in the universe. with a power level of 5. yamcha amplified that 800x and is one of the strongest humans who has ever lived. He is piratically god in every other anime known to man.

Why is that? Because his potential was released by Guru? That doesn't mean he's the strongest. Krillin stopped training after he settled down with Android 18.

Tien, on the other hand, continued training and never stopped. It was also Tien who was able to hold down Semi-Perfect Cell with Neo Tri-Beams. Meanwhile, Piccolo, who Vegeta himself says is stronger than a Super Saiyan after fusing with Kami, was easily bested by Imperfect Cell.

Krillin, meanwhile, was able to cut kid buu in half near the end of majin buu saga, (THough he regened right after) which, mind you, when the same technique was attempted on cell, it literally just exploded into nothing.

Not to mention Krillin was able to actually go toe to toe with imperfect cell for a few punches or so. Imo Krillin WAY outdoes Tien.

Except Cell was shown to be in pain whenever he got blasted with a Neo Tri-Beam and he was being held down by it, meaning he couldn't overpower the blast.
And I'm pretty sure Kid Buu willingly separated his body when Krillin used his Ki-Enzan to **** with them. It is Kid Buu, after all.
And Krillin fighting against Imperfect Cell is filler, so there's no real evidence there. Besides, I recall him spending most of the fight running from Cell, anyways.